Great Circle Associates Majordomo-Users
(October 1999)
 

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Subject: Re: Circumventing restricted-post
From: Rick Green <rtg @ mich . com>
Date: Tue, 26 Oct 1999 13:31:46 -0400 (EDT)
To: TC Hazzard <hazbro @ gwi . net>
Cc: majordomo-users @ GreatCircle . COM
In-reply-to: <Pine.BSI.4.10.9910260955180.501-100000@sss1.gwi.net>

On Tue, 26 Oct 1999, TC Hazzard wrote:

> I have triple checked the config file for this list and tested posts and
> have not been able to post. My thought is that some devious person found
> out how to determine who was allowed to post and then proceeded to munge
> the headers to get their spam through.
> 
 That's possible, and another possibility is that the spammer found out
the name of the list-outgoing alias and posted directly to that.  A
careful examination of the headers on one of the spam messages would tell.

Read the FAQ for suggestions on how to prevent discovery of the -outgoing
alias name.  I have heard one suggestion that I haven't tried for using
the virtual user table to reject any external postings addressed to the
-outgoing, while still letting resend find it.

-- 
Rick Green



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